A synthesis reaction occurs when two or more simple substances combine to form more complex substances. A + B -> AB
Reversing a synthesis reaction gives decomposition reaction. AB ->A + B
The characteristics of chemical reactions are :
1) Change of colour - When citric acid is added to Potassium permangenate then the purple colour starts discharging .
2)Change of state - When hydrogen(gas) reacts with oxygen(gas) , they form water a liquid
3)Evolution of a gas - When lead nitrate is heated the it decomposes to lead oxide , nitrogen dioxide with oxygen .
4) Formation of a precipitate - When lead nitrate reacts with potassium iodide , it forms a yellow precipitate Lead iodide and potassium nitrate .
5)Change in temperature -
- Exothermic reaction - reaction in which heat is released
When quick lime reacts with water to form slaked lime , it releases a lot of energy .
- Endothermic reaction - reaction in which heat is absorbed
When hydrogen reacts with iodine to form hydrogen iodide , it absorbs a lot of energy .
the characteristics of chemical equations are:
bubbling, heating, change of colour and many others
it is actually as follows:
1. The equation must represent known facts.
2. The equation must contain the correct formulas for the reactants and products
3. The law of conservation of mass must be satisfied
Yes, because it is a characteristic of a chemical reaction.
Exothermic
A+b -----> c
Electrons Are Exchanged
Its somthing that speeds up or slows down a chemical reaction (:
A chemical reaction is a graphical representation of a chemical reaction.
Yes, because it is a characteristic of a chemical reaction.
Exothermic
A+b -----> c
Electrons Are Exchanged
Its somthing that speeds up or slows down a chemical reaction (:
- with enzymes the rate of reaction is higher- an important characteristic of an enzyme is the specifity
Only small quantity is need for a reaction They are specific. One catalyst is need for specific reaction only Physical properties may change during a reaction but no it does not take part in the reaction.
Nuclear reactions involve the reaction of nuclei and does not involve transfer of electron as in regular chemical reactions.
Energy, Reproduction, Adaption, Reaction, Cells, Structure, Growth, Develop
D. All of the above. haha Plato
Combustion is the description of the reaction that results when a substance burns when heat is applied fast enough. Usually combustion also cause a rapid expansion of gasses from the reaction.